Home / 77,430.24-106,861.80-43,447.89

Finding the Fourth Proportional to 77,430.24, 106,861.80 and 43,447.89

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Solution

The fourth proportional to 77,430.24, 106,861.80 and 43,447.89 is: 59,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,430.24 : 106,861.80 = 43,447.89 : x
  2. Step 2: Convert to fraction form
    77,430.24/106,861.80 = 43,447.89/x
  3. Step 3: Cross multiply
    77,430.24x = 106,861.80 × 43,447.89
  4. Step 4: Simplify right side
    77,430.24x = 4,642,919,731.60
  5. Step 5: Solve for x
    x = 4,642,919,731.60/77,430.24
  6. Step 6: Final answer
    x = 59,962.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.